Platform truck



FIG. 1 is a top right front perspective view of a platform truck showing our new design;

FIG. 2 is a front elevational view thereof;

FIG. 3 is a rear elevational view thereof;

FIG. 4 is a right side elevational view thereof; the left side elevational view being a mirror image; and,

FIG. 5 is a top plan view thereof.

The broken line showing of wheels in FIGS. 1 through 4 is for illustrative purposes only and forms no part of the claimed design. 

The ornamental design for a platform truck, as shown and described. 